linux-kernel - [PATCH v3 02/10] software node: Make argument to to_software

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Message-Id: <20190829101043.24963-3-sakari.ailus@linux.intel.com>
Date:   Thu, 29 Aug 2019 13:10:35 +0300
From:   Sakari Ailus <sakari.ailus@...ux.intel.com>
To:     Petr Mladek <pmladek@...e.com>, linux-kernel@...r.kernel.org,
        rafael@...nel.org
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-acpi@...r.kernel.org, devicetree@...r.kernel.org,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v3 02/10] software node: Make argument to to_software_node const

to_software_node() does not need to modify the fwnode_handle it operates
on; therefore make it const. This allows passing a const fwnode_handle to
to_software_node().

Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>
---
 drivers/base/swnode.c    | 4 ++--
 include/linux/property.h | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/base/swnode.c b/drivers/base/swnode.c
index a7cb41812cfda..951e7efd47c23 100644
--- a/drivers/base/swnode.c
+++ b/drivers/base/swnode.c
@@ -71,9 +71,9 @@ software_node_to_swnode(const struct software_node *node)
 	return swnode;
 }
 
-const struct software_node *to_software_node(struct fwnode_handle *fwnode)
+const struct software_node *to_software_node(const struct fwnode_handle *fwnode)
 {
-	struct swnode *swnode = to_swnode(fwnode);
+	const struct swnode *swnode = to_swnode(fwnode);
 
 	return swnode ? swnode->node : NULL;
 }
diff --git a/include/linux/property.h b/include/linux/property.h
index 5a910ad795910..421c76e53708d 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -418,7 +418,8 @@ struct software_node {
 };
 
 bool is_software_node(const struct fwnode_handle *fwnode);
-const struct software_node *to_software_node(struct fwnode_handle *fwnode);
+const struct software_node *
+to_software_node(const struct fwnode_handle *fwnode);
 struct fwnode_handle *software_node_fwnode(const struct software_node *node);
 
 int software_node_register_nodes(const struct software_node *nodes);
-- 
2.20.1